Fluid reservoir



FIG. 1 is a perspective view of a fluid reservoir; showing our new design.

FIG. 2 is a front view of the fluid reservoir;

FIG. 3 is a rear view of the fluid reservoir;

FIG. 4 is a right side view of the fluid reservoir, the left side view being identical;

FIG. 5 is a top view of the fluid reservoir; and,

FIG. 6 is a bottom view of the fluid reservoir.

In the drawings, the dash-dot-dot-dash and dot-dot broken lines are for the purpose of illustrating environment only and form no part of the claimed design. The fluid reservoir is shown with a symbolic break in its length. The appearance of any portion of the article beyond the break line forms no part of the claimed design. 

CLAIM The ornamental design for a fluid reservoir, as shown and described. 